A personal, guided tour to the best scoops and stories every day in The Wall Street Journal, from Editor in Chief Gerard Baker.

The world has anxiously been watching for updates since Malaysia Airlines lost contact with a Boeing 777 on Saturday. The puzzle over what happened to the aircraft carrying 227 passengers and 12 crew members continues to baffle investigators and airline officials while distraught relatives are demanding answers. We report that countries have put aside their disputes to help with the search efforts. But the lack of signals from emergency transmitters on the plane has further...